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// Copyright Neil Groves 2009. Use, modification and
// distribution is subject to the Boost Software License, Version
// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
//
// For more information, see http://www.boost.org/libs/range/
//
#ifndef BOOST_RANGE_ALGORITHM_FIND_HPP_INCLUDED
#define BOOST_RANGE_ALGORITHM_FIND_HPP_INCLUDED
#include <boost/concept_check.hpp>
#include <boost/range/begin.hpp>
#include <boost/range/end.hpp>
#include <boost/range/concepts.hpp>
#include <boost/range/detail/range_return.hpp>
#include <algorithm>
namespace boost
{
namespace range
{
/// \brief template function find
///
/// range-based version of the find std algorithm
///
/// \pre SinglePassRange is a model of the SinglePassRangeConcept
template< class SinglePassRange, class Value >
inline BOOST_DEDUCED_TYPENAME disable_if<
is_const<SinglePassRange>,
BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange>::type
>::type
find( SinglePassRange& rng, const Value& val )
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> ));
return std::find(boost::begin(rng), boost::end(rng), val);
}
/// \overload
template< class SinglePassRange, class Value >
inline BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange>::type
find( const SinglePassRange& rng, const Value& val )
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> ));
return std::find(boost::begin(rng), boost::end(rng), val);
}
// range_return overloads
/// \overload
template< range_return_value re, class SinglePassRange, class Value >
inline BOOST_DEDUCED_TYPENAME disable_if<
is_const<SinglePassRange>,
BOOST_DEDUCED_TYPENAME range_return<SinglePassRange,re>::type
>::type
find( SinglePassRange& rng, const Value& val )
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> ));
return range_return<SinglePassRange,re>::
pack(std::find(boost::begin(rng), boost::end(rng), val),
rng);
}
/// \overload
template< range_return_value re, class SinglePassRange, class Value >
inline BOOST_DEDUCED_TYPENAME range_return<const SinglePassRange,re>::type
find( const SinglePassRange& rng, const Value& val )
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> ));
return range_return<const SinglePassRange,re>::
pack(std::find(boost::begin(rng), boost::end(rng), val),
rng);
}
} // namespace range
using range::find;
}
#endif // include guard
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